Olle Jonsson
Utvecklare at Auctionet.com
Malmo, Sweden
Summary
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RockstarOlle Jonsson is an open-source-oriented web developer based in Malmö with 18 years of hands-on experience building and hardening Ruby-centric web platforms. Currently developing at Auctionet.com, he specializes in Ruby on Rails, backend engineering and test automation, and has made substantive contributions to high-profile projects such as ruby/ruby, rubygems, bundler and puma. Comfortable across the full stack, he pairs legacy PHP/MySQL knowledge and DOM/CSS skills with a deep interest in metaprogramming and exotic languages, and prefers automating repeatable processes wherever possible. His open-source work emphasizes code quality, refactoring and test coverage—fixing bugs, improving CI and adding regression tests across many widely used libraries. Notably, his contributions span both core language improvements and tooling that keep the Ruby ecosystem reliable for other developers.
18 years of coding experience
Danish
Stackoverflow
1,946reputation
390kreached
38answers
0questions
mysql
top-5%
iframe
top-5%
phantomjs
top-5%
Github Skills (77)
dependency-management10
testing10
rspec10
httpc10
refactor10
ruby10
javas10
http-client10
automation10
build-automation10
rake10
rack10
refactoring10
actor-model10
concurrency10
Programming languages (26)
Github contributions (5)
lostisland/faraday
Nov 2016 - Jan 2023
Simple, but flexible HTTP client library, with support for multiple backends.
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:4 releases, 182 reviews, 182 commits in 6 years 2 months
Contributions summary:Olle contributed to the Faraday HTTP client library by implementing features related to YAML serialization of headers, and refactoring existing code. They also added integration tests, including one that raises an error when no live server is configured, enhancing the test suite. Additionally, the user provided support for the Net::HTTP::Persistent v3.0.0 adapter and removed the deprecated Typhoeus adapter.
http-client
rubygems/gemstash
Nov 2016 - Jun 2022
A RubyGems.org cache and private gem server
Role in this project:Back-end Developer
Back-end DeveloperContributions:40 reviews, 81 commits, 138 PRs in 5 years 7 months
Contributions summary:Olle contributed primarily to the configuration and internal workings of the Gemstash project. They implemented configurable options for database connections, including the addition of puma threads and connection options. Furthermore, the user removed GemYanker-related code and adjusted integration tests to reflect this change. The user also updated and maintained the health check endpoint, ensuring it reflects the current state of the server.
rubygemstest-kitchenrubymrubygem
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